Thelonious wrote:If I may ask; how's work progressing nowadays?
Sorry for the extremely late answer: three and a half out of six maps are completed, with work ongoing.
and in which book... when will Nicky Ironfist appears?
Book III

1. Will "Tawni's pirates" be a playable faction?
They're already in the first two books...
2. How will ancient looks like? (or their guns will be the modified Dark Elf crossbows)
Don't understand the question, sorry.
3. Will Tarnum the Immortal Hero reappears? and which faction will he join?
If he were to appear, he'd most likely be with the Stronghold faction.